OK, so I got a MB Core Duo with a battery that has been nothing but trouble since I got the thing. I have reset the SMC on the thing a good 10x and in the past it has seemed to help. However, the battery still has acted weird (it dies within 2 days of being in sleep mode). I could have sworn that my powerbooks and ibooks lasted around 5 days in sleep mode...

Anyway, besides that issue, I can't seem to get the battery to hold a charge anymore. Does anyone know of any diagnostics that I can run on the lap to test the batt integrity?

At this point I think I am just going to have to replace the battery itself. My guess is I just got a lemon battery, but I haven't really been able to test other MacBooks extensively to determine if this is a widespread issue or just my luck.

Did you buy the battery new? If so it may be under warranty. Also check the battery's serial number at apples web site to see if it is a lemon. Apple has had recalls for certain batches of batteries. Also if it is one of the recalled batteries, it shouldn't matter if it is under warranty or not.

Apple's battery issues didn't cover the macbook. Its also out of warranty and it was purchased refurb from Apple. So, none of those are options. I am basically set to buy a new one if this one is indeed killed, which is seems it is.

What you should do is check the info reported by System Profiler for your battery. Check under the 'Power' heading on the left hand side and look at the battery stats - particularly the number of cycles, full battery charge and the health. I'm guessing the health will be poor and the full charge will not be too high - don't have mine handy for a reference I'm afraid. If your cycle count is low enough, you may be able to persuade an Applecare rep to replace it for you free of charge. 300 is usually the magic number. If your battery is below this, you have a case.

Feel free to cite these numbers to Applecare, though I would prefer you avoid showing exactly where you got them. 'The internet' should be a good enough answer if they ask.

So, I recently procured a MB 2gHzC2D. It had a dead battery. Being a late '06 MacBook, it falls into the batch of bad batteries that Apple got. I called Apple and the support guy basically said I was screwed. Then I told the support guy about this web page: http://www.apple.com/support/macbook_macbookpro/batteryupdate/ Here's a quote:

Quote:

If Apple or an AASP determines that your battery is eligible for replacement, you will receive a new battery, free of charge, even if your MacBook or MacBook Pro is out of warranty.

The page even shows that 300 cycle count. After I pointed that out, the support guy sent me over to a tech guy who said I was right. Now they're air mailing me a new battery for free. ;D

Xplain's use of MacNews, AppleCentral and AppleExpo are not affiliated with Apple, Inc. MacTech is a registered trademark of Xplain Corporation. AppleCentral, MacNews, Xplain, "The journal of Apple technology", Apple Expo, Explain It, MacDev, MacDev-1, THINK Reference, NetProfessional, MacTech Central, MacTech Domains, MacForge, and the MacTutorMan are trademarks or service marks of Xplain Corp. Sprocket is a registered trademark of eSprocket Corp. Other trademarks and copyrights appearing in this printing or software remain the property of their respective holders.

All contents are Copyright 1984-2010 by Xplain Corporation. All rights reserved. Theme designed by Icreon.